350 SS existed only as a decal. The sport model actually had an option to come with 350 SS decals, but it's a sport model, and not really an SS. The sport model was also a back door to get the 454 without the SS package.. The Sport also wouldn't have come with a GTO style hood scoop. Sport and SS trucks did not have special hoods.. Sport was a paint and trim package... As for a title. someone who originally titled it could have squeezed in SS, and that could have been a dealer..